The source material of our UV-Silos® is the fibre KoSa high-tenacity polyester yarn.
The Hoechst AG,
former manufacturer of this polyesterfibre,
ran tests in the area of Frankfurt/Main with this material under the name of TREVIRA-HOCHFEST® for its resistance against sunlight and UV radiation.
One result was,
that a black thread ist much more UV-resistant than a white thread.
This knowledge was the basis of a patent that was given to Silobau Steinecke by the German Patent Office after thorough testing (DBP Nr. 32 04 758.4).